Correspondent Corbie Hill wrote, “Observing animals in the wild can be tricky; if you can see them, chances are they can see you. Or smell you. Or hear you. Many times, they know you’re coming and vanish. For biologists, this is a big deal. Even if animals get used to you and go back to their business, are they still behaving as they would if no one was there? One solution is camera traps, which are the focus of local zoologist Roland Kays’ new book…” Read more here: http://www.newsobserver.com/entertainment/books/article94338262.html